what is the correct reading for engine oil pressure gauge Indicator?

[saeed161]

Where should the engine oil pressure gauge indicator be at when the engine is warm?
Is there any limitation for the gauge Indicator?
Tahoe 2013 5.3L, 4WD
Thank you.

 

[91RS]

20 PSI for a hot idle is usually normal. Not 100% sure how that translates to the metric gauge but 20 PSI is the first mark on the US models. The low oil pressure message doesn’t come on until 6 PSI though.